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Full Discussion: Using ANSI color codes in gcc compiled program
Top Forums Programming Using ANSI color codes in gcc compiled program Post 302632035 by kristinu on Sunday 29th of April 2012 12:49:02 AM
Old 04-29-2012
Using ANSI color codes in gcc compiled program
I have put some yellow color codes and works well.

I call the funstion using

Code:
print_usage(stderr, 0);

I would like to know if there is any way, to store the ansi color codes in variables and then call them inside fprintf.
Or have a format followed by the strings I want to output.

Code:
void print_usage(FILE* stream, int exit_code) {

  fprintf (stream,
      "\033[1;33mUSAGE\e[0m\n"
      "   %s options\n\n", program_name);

  fprintf (stream,
    "\033[1;33mACTIONS\e[0m\n"
    "    --cmod=FILE   Velocity model file (required)\n"
    "    --vdx=DV      Interval in x direction in velocity file\n"
    "    --nx=NUM      Interval calculated with vdx = Lx / Nx (default: 20)\n"
    "    --vdz=DV      Interval in z direction in velocity file or\n"
    "    --nz=NUM      Interval calculated with vdz = Lz / Nz (default: 20)\n"
    "    --vdi=DV      Interval along interface\n"
    "    --ni=NUM      Interval calculated with vdi = Li / Ni (default: 20)\n"
    "    --vel=FILE    File with P wave velocity in 'x z v' format\n"
    "    --velp=FILE   File with P wave velocity in 'x z v' format\n"
    "    --vels=FILE   File with S wave velocity in 'x z v' format\n"
    "    --lay=ON/OFF  If --lay=ON, output files are in 'x z v l' format\n"
    "    --intf=       Output file for interfaces in 'x z' format, separated by '>'\n"
    "    -h  --help    Display this usage information\n"
    "    -o  --output=FILE  Write output to file\n"
    "    --vb=LEVEL    Print verbose messages\n"
    "\n");

  exit (exit_code);

}

---------- Post updated at 11:49 PM ---------- Previous update was at 09:56 PM ----------

I have now coded the following which is working well.

How can I simplify this code. For example, it would be good to construct a format, followed by the things I want to print.

Something similar to the following

Code:
frmt_sv = "nRd%snWh=uGn%srcl"
frmt_desc="    %s\n"

fprintf (stream, frmt_sv, "--nx", "NUM");
fprintf (stream, frmt_desc, "interval calculated with vdx = Lx / Nx (default: 20)");

The code is currently as follows

Code:
void print_usage(FILE* stream, int exit_code) {

  const char* progname;
  const char* bYl;
  const char* nRd;
  const char* uGn;
  const char* nWh;
  const char* rcl;
  char* frArgm_sv;

  progname = "getveltest";

  bYl = "\e[1;33m";
  nRd = "\e[0;31m";
  uGn = "\e[4;32m";
  nWh = "\e[0;37m";
  rcl = "\e[0m";

  fprintf (stream,"%s%s%s\n",bYl,"USAGE",rcl);
  fprintf (stream,"    %s%s %s%s%s\n\n",nRd,progname,uGn,"ACTIONS",rcl);

  fprintf (stream,"%s%s%s\n",bYl,"ACTIONS",rcl);
  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--cmod",nWh,"=",uGn,"FILE",rcl);
  fprintf (stream,"  %s\n"," sound speed model (mandatory)");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--vdx",nWh,"=",uGn,"DX",rcl);
  fprintf (stream,"  %s\n","    interval in x direction in velocity file");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--nx",nWh,"=",uGn,"NUM",rcl);
  fprintf (stream,"  %s\n","    interval calculated with vdx = Lx / Nx (default: 20)");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--vdz",nWh,"=",uGn,"DZ",rcl);
  fprintf (stream,"  %s\n","    interval in z direction in velocity file");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--nz",nWh,"=",uGn,"NUM",rcl);
  fprintf (stream,"  %s\n","    interval calculated with vdz = Lz / Nz (default: 20)");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--vdi",nWh,"=",uGn,"DI",rcl);
  fprintf (stream,"  %s\n","    interval along interface");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--ni",nWh,"=",uGn,"NUM",rcl);
  fprintf (stream,"  %s\n","    interval calculated with vdi = Li / Ni (default: 20)");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--vel",nWh,"=",uGn,"FILE",rcl);
  fprintf (stream,"  %s\n","  file with P wave velocity in 'x z v' format");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--velp",nWh,"=",uGn,"FILE",rcl);
  fprintf (stream,"  %s\n"," file with P wave velocity in 'x z v' format");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--vels",nWh,"=",uGn,"FILE",rcl);
  fprintf (stream,"  %s\n"," file with S wave velocity in 'x z v' format");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--lay",nWh,"=",uGn,"ON/OFF",rcl);
  fprintf (stream,"  %s\n","if --lay=ON, output files are in 'x z v l' format");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--intf",nWh,"=",uGn,"FILE",rcl);
  fprintf (stream,"  %s\n"," output file for interfaces in 'x z' format, separated by '>'");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"--vb",nWh,"=",uGn,"LEVEL",rcl);
  fprintf (stream,"  %s\n","  print verbose messages");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"-u",nWh," ",nRd,"--usage",rcl);
  fprintf (stream,"  %s\n","  displays usage");

  fprintf (stream,"    %s%s%s%s%s%s%s",nRd,"-h",nWh," ",nRd,"--help",rcl);
  fprintf (stream,"  %s\n","   display this usage information");

  exit (exit_code);

}

 

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